Michael O. Randolfi is CFO at Groupon, Inc. (GRPN). They have made 5 open-market trades across 3 companies since 2014, most recently 2026-05-15.
CIK 0001543620
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
4 open-market purchases totalling $2.1M since 2019, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SABR | BUY | 2024-05-03 | 2024-05-06 | $2.98 | $149K | +10.8% | +10.4% | +8.6% |
| SABR | BUY | 2023-08-09 | 2023-08-09 | $5.37 | $387K | -3.3% | -6.7% | -37.9% |
| SABR | BUY | 2022-11-22 | 2022-11-22 | $4.79 | $479K | +18.4% | +16.3% | +0.2% |
| ATGE | BUY | 2019-11-15 | 2019-11-18 | $33.73 | $1.1M | -1.7% | +0.2% | +0.1% |
| OWW | SELL | 2015-02-18 | 2015-02-20 | $11.60 | $346K | N/A | N/A | N/A |
| OWW | SELL · 10b5-1 | 2014-03-12 | 2014-03-13 | $9.07 | $135K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.